I've got Karmic installed on an X200s thinkpad and I'm getting the exact same call trace as saran does. Happened to me today after locking the computer (no lid closing) and leaving it for ~30 minutes.
-- [i915gm] karmic 2.6.31-2 and -3 lid closing blacks screen until reboot on thinkpad r52 https://bugs.launchpad.net/bugs/399636 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
